Seymour (plankton)
Not to be confused with Seymour Scales.
Seymour is a paternal great-grandfather of Sheldon J. Plankton, the father-in-law of Granny Plankton, the paternal grandfather of Gordon Plankton and Silas Plankton, the grandfather-in-law of Mama Plankton, and also the great-grandfather-in-law of Karen Plankton. He appears in the comic A Plankton Family Tree.
Description
He is an old plankton with four curled arms and legs, two buck teeth, and a pipe in his mouth.
Biography
At some point, he married Basia. Later, they were run out of their hometown for evil scheming and had to move to Bikini Bottom. Here, they had Alvin, Moe Bros, and Grand Dad Plankton. His last name, which is also Granny Plankton's maiden name, has never been revealed.
Role in comic
He is a representation of Plankton's family tree.